Recall 24V307 covers 29 2023, 2024, 2026 Braun Ambulances vehicles for overloaded electrical circuits. Firmware update is free at any franchised Braun Ambulances dealer.
Braun Ambulances is recalling 29 2023, 2024, 2026 Chief Xl Type I, Express Plus Type I, Express Type Iii, Chief Xl Type Iii, and Liberty Type I vehicles because node firmware can leave an output pin on after a short circuit or wiring failure. Overloaded electrical circuits can overheat and raise fire risk; Braun Ambulances dealers will complete the repair free of charge.
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What's wrong?
The Hercules HC 1.7 Node is an electronic control module in the Braun Ambulances electrical system. It sends power through output pins to equipment installed on the ambulance body, so those circuits turn on and off as commanded. The node and its firmware have to stop power flow when a circuit has a fault.
On included 2023, 2024, 2026 Braun Ambulances models, the 6060-2010-00 node and its firmware do not shut off the output pin after a short circuit or wiring failure. That leaves the circuit overloaded instead of protected. An overloaded circuit can build heat in the wiring or connected equipment, increasing the risk of heat damage and fire.
There is no warning sign before failure. The issue is tied to the node part number, firmware version, serial number, and date range, not to something an owner or crew member is expected to feel while driving.
Who's affected?
Spans 5 Braun Ambulances models across the 2023, 2024, and 2026 model years, all using the same Hercules HC 1.7 Node.
| 2024 Braun Ambulances Chief Xl Type I | electrical system |
|---|---|
| 2024 Braun Ambulances Express Plus Type I | electrical system |
| 2023 Braun Ambulances Express Type Iii | electrical system |
| 2023 Braun Ambulances Chief Xl Type Iii | electrical system |
| 2023 Braun Ambulances Liberty Type I | electrical system |
| 2024 Braun Ambulances Liberty Type I | electrical system |
| 2024 Braun Ambulances Express Type Iii | electrical system |
| 2023 Braun Ambulances Chief Xl Type I | electrical system |
| 2026 Braun Ambulances Chief Xl Type Iii | electrical system |
| 2023 Braun Ambulances Express Plus Type I | electrical system |
| Units affected | 29 |
| Field incidents | NHTSA has logged no field incidents to date. |
The year, model, and ambulance body type narrow the scope, but the VIN decides. Check your VIN to confirm whether your specific vehicle is included.
What's the safety risk?
Overloaded electrical circuits can overheat and increase the risk of fire. This is an electrical safety defect, so schedule the firmware update soon and ask the dealer what to do if the ambulance shows electrical trouble before the appointment. Repair is free at any franchised Braun Ambulances dealer.
What should I do?
- Check your VIN to confirm your 2023, 2024, or 2026 Braun Ambulances Chief Xl Type I, Express Plus Type I, Express Type Iii, Chief Xl Type Iii, or Liberty Type I is included in this recall.
- Contact a franchised Braun Ambulances dealer to schedule the free node-firmware update that shuts off the output pin and prevents overloaded electrical circuits.
- Bring the recall notice if Braun Ambulances mailed one. If not, reference recall number 24V307 when you call.
- Call Braun Ambulances customer service at 1-877-344-9990 with questions about scheduling or repair availability.
- Avoid continued use if the electrical system shows signs of overheating; contact the dealer before returning the vehicle to service.
What happens at the repair
At the dealer, a Braun Ambulances technician updates the firmware in the node so the system can shut off the output pin as intended during a short circuit or wiring failure. The recall repair is free, and parts and labor are covered. If you already paid out of pocket for the same firmware remedy before the owner notice, Braun Ambulances provides reimbursement. Contact Braun Ambulances customer service or ask the service desk what documentation they need for the claim.
| Reimbursement | Reimbursement available |
|---|
Timeline
| April 30, 2024 | NHTSA published the recall |
|---|---|
| May 1, 2024 | Dealer notification began |
| May 8, 2024 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| May 8, 2024 | Interim owner notification (was planned for this date) |
| May 15, 2024 | Dealer notification ended |
| June 17, 2024 | Owner notification mailed |
Frequently asked questions
What is recall 24V307?
Recall 24V307 covers 29 Braun Ambulances vehicles from 2023, 2024, and 2026 with electrical node firmware that fails to shut off an output pin after a short circuit or wiring failure. Overloaded electrical circuits can overheat and increase fire risk. Dealers will update the firmware for free.
What should I do if my 2023, 2024, 2026 Braun Ambulances Chief Xl Type I, Express Plus Type I, Express Type Iii, Chief Xl Type Iii, or Liberty Type I is on this recall?
Check your VIN to confirm your specific ambulance is included in recall 24V307. If it is, contact a Braun Ambulances dealer to schedule the firmware update. Reference Braun Ambulances recall number 24-003 when you call. The dealer repair is free.
Is the recall repair free?
Yes. Federal recall law requires manufacturers to repair recalled safety defects at no cost, and Braun Ambulances dealers will update the electrical node firmware free of charge. Parts and labor are covered for vehicles included in recall 24V307.
What is the safety risk?
The safety risk is electrical overheating that can increase the risk of fire. The recalled firmware fails to shut off an output pin after a short circuit or wiring failure, which overloads the electrical circuit. Confirm the VIN, then schedule the free firmware update.
When were owners notified about recall 24V307?
Braun Ambulances mailed owner notification letters on June 17, 2024. If you bought the ambulance used or never received a letter, the VIN still decides coverage. Check your VIN, then call a Braun Ambulances dealer with recall number 24-003.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/24V307000 |
|---|---|
| Braun Ambulances customer service | 1-877-344-9990 |
| NHTSA recall # | 24V307 |
| NHTSA recall # (full) | 24V307000 |
Source documents
-
Download Quarterly Report (PDF) - Download Recall Report (PDF)
- Download Owner Notice (PDF)
- Download Owner Notification Letter (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 20, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →